Boxes on this page include descriptions of the more common journal impact metrics, as well as what tools to use to find the metrics.
You can access Journal Citation Reports (JCR), a product of Thomson Reuters, via Web of Science (look for the link at the top of the page). Published annually, JCR provides a number of journal impact measurements for journals in the sciences and social sciences. Reported metrics include Impact Factor, 5-year Impact Factor, Immediacy Index, and others. Since 2007, JCR has also included Eigenfactor Metrics.
The Sources tab is available via the top menu bar in Scopus. You can search for a particular journal, or browse sources alphabetically or by subject.
Available metrics are CiteScore, SJR, and SNIP.
Google Scholar Metrics includes a top 100 list of journals for particular subject fields ranked using their 5-year h-index. You can look at top journals in particular subject categories and sub-categories. The underlying data come from Google Scholar. Sections on Metrics, Coverage, and Inclusion tell you more about how the rankings were derived.
Journal Impact Factor